<!-- templates/styles.html -->
<style>
    body {
        {% if style == 'dark' %}
            background-color: #333;
            color: white;
        {% elif style == 'light' %}
            background-color: #f0f0f0;
            color: #333;
        {% else %}
            background-color: white;
            color: #333;
        {% endif %}
    }
</style>
